<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style>
			.table,
			.table th,
			.table td {
				border: 1px solid #FF7777;
				/* 收紧单元格之间的边框 */
				border-collapse: collapse;
			}
		</style>
	</head>
	<body>
		<table class="table">
			<thead>
				<tr>
					<th>列1</th>
					<th>列2</th>
					<th>列3</th>
					<th>列4</th>
				</tr>
			</thead>
			<tbody>
				<tr>
					<td>1</td>
					<td colspan="2">2-3</td>
					<td>4</td>
				</tr>
				<tr>
					<td>1</td>
					<td rowspan="2">2</td>
					<td>3</td>
					<td>4</td>
				</tr>
				<tr>
					<td>1</td>
					<td>3</td>
					<td>4</td>
				</tr>
			</tbody>
		</table>
	</body>
</html>